178. Rank Scores

# Write your MySQL query statement below
# https://leetcode.com/problems/rank-scores/description/

SELECT 
    a.Score,  (SELECT COUNT(DISTINCT b.Score) + 1 FROM Scores b WHERE b.Score > a.Score) AS Rank
FROM
    Scores a
ORDER BY a.Score DESC


# Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" between ranks.

# +----+-------+
# | Id | Score |
# +----+-------+
# | 1  | 3.50  |
# | 2  | 3.65  |
# | 3  | 4.00  |
# | 4  | 3.85  |
# | 5  | 4.00  |
# | 6  | 3.65  |
# +----+-------+
# For example, given the above Scores table, your query should generate the following report (order by highest score):

# +-------+------+
# | Score | Rank |
# +-------+------+
# | 4.00  | 1    |
# | 4.00  | 1    |
# | 3.85  | 2    |
# | 3.65  | 3    |
# | 3.65  | 3    |
# | 3.50  | 4    |
# +-------+------+